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Add FP64 emulation support for ATS-M

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This patch adds FP64 emulation support for ATS-M.
Introducing new environment variable - NEO_FP64_EMULATION - which provides
an option to allow the opt-in emulation of FP64.
When emulation is enabled, we pass -cl-fp64-gen-emu (ocl) /
-ze-fp64-gen-emu (L0) as an internal option to IGC.

Related-To: NEO-7611
Signed-off-by: Fabian Zwolinski <fabian.zwolinski@intel.com>
This commit is contained in:
Fabian Zwolinski
2023-02-27 16:53:08 +00:00
committed by Compute-Runtime-Automation
parent 8a55d9b517
commit 6c59953072
38 changed files with 296 additions and 6 deletions
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5
level_zero/core/source/device/device_imp.cpp
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@@ -688,6 +688,11 @@ ze_result_t DeviceImp::getKernelProperties(ze_device_module_properties_t *pKerne
pKernelProperties->fp64flags |= ZE_DEVICE_FP_FLAG_ROUNDED_DIVIDE_SQRT;
pKernelProperties->fp32flags |= ZE_DEVICE_FP_FLAG_ROUNDED_DIVIDE_SQRT;
}
} else if (hardwareInfo.capabilityTable.ftrSupportsFP64Emulation) {
if (neoDevice->getExecutionEnvironment()->isFP64EmulationEnabled()) {
pKernelProperties->flags |= ZE_DEVICE_MODULE_FLAG_FP64;
pKernelProperties->fp64flags = defaultFpFlags | ZE_DEVICE_FP_FLAG_SOFT_FLOAT;
}
}
}

6
level_zero/core/source/driver/driver.cpp
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@@ -43,6 +43,8 @@ void DriverImp::initialize(ze_result_t *result) {
envReader.getSetting("ZES_ENABLE_SYSMAN", false);
envVariables.pciIdDeviceOrder =
envReader.getSetting("ZE_ENABLE_PCI_ID_DEVICE_ORDER", false);
envVariables.fp64Emulation =
envReader.getSetting("NEO_FP64_EMULATION", false);
auto executionEnvironment = new NEO::ExecutionEnvironment();
UNRECOVERABLE_IF(nullptr == executionEnvironment);
@@ -53,6 +55,10 @@ void DriverImp::initialize(ze_result_t *result) {
}
}
if (envVariables.fp64Emulation) {
executionEnvironment->setFP64EmulationEnabled();
}
executionEnvironment->setMetricsEnabled(envVariables.metrics);
executionEnvironment->incRefInternal();

3
level_zero/core/source/driver/driver_imp.h
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@@ -1,5 +1,5 @@
/*
* Copyright (C) 2020-2021 Intel Corporation
* Copyright (C) 2020-2023 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
@@ -32,6 +32,7 @@ struct L0EnvVariables {
bool pin;
bool sysman;
bool pciIdDeviceOrder;
bool fp64Emulation;
};
} // namespace L0

5
level_zero/core/source/module/module_imp.cpp
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@@ -63,6 +63,7 @@ NEO::ConstStringRef optLargeRegisterFile = "-ze-opt-large-register-file";
NEO::ConstStringRef optAutoGrf = "-ze-intel-enable-auto-large-GRF-mode";
NEO::ConstStringRef enableLibraryCompile = "-library-compilation";
NEO::ConstStringRef enableGlobalVariableSymbols = "-ze-take-global-address";
NEO::ConstStringRef enableFP64GenEmu = "-ze-fp64-gen-emu";
} // namespace BuildOptions
ModuleTranslationUnit::ModuleTranslationUnit(L0::Device *device)
@@ -143,6 +144,10 @@ std::string ModuleTranslationUnit::generateCompilerOptions(const char *buildOpti
internalOptions = NEO::CompilerOptions::concatenate(internalOptions, BuildOptions::debugKernelEnable);
}
if (neoDevice.getExecutionEnvironment()->isFP64EmulationEnabled()) {
internalOptions = NEO::CompilerOptions::concatenate(internalOptions, BuildOptions::enableFP64GenEmu);
}
const auto &compilerProductHelper = neoDevice.getRootDeviceEnvironment().getHelper<NEO::CompilerProductHelper>();
auto forceToStatelessRequired = compilerProductHelper.isForceToStatelessRequired();
auto statelessToStatefulOptimizationDisabled = NEO::DebugManager.flags.DisableStatelessToStatefulOptimization.get();

1
level_zero/core/source/module/module_imp.h
View File

@@ -40,6 +40,7 @@ extern NEO::ConstStringRef optLargeRegisterFile;
extern NEO::ConstStringRef optAutoGrf;
extern NEO::ConstStringRef enableLibraryCompile;
extern NEO::ConstStringRef enableGlobalVariableSymbols;
extern NEO::ConstStringRef enableFP64GenEmu;
} // namespace BuildOptions